Photo via Kate Sokoler's Flickr.

Over the weekend the Improv Everywhere troupe was back for another MP3 Experiment extravaganza, this time taking place on Governor's Island. They estimate around "1.5 jabillion" were in attendance, and promise some video in the coming weeks. What we do know: the MP3 included both music and instructions (listen), a bear (or Furry) was in attendance, and balloons were somehow involved. Were you there?